When did the first major retailer implement voice-activated purchasing that could understand natural language queries with over 90% accuracy?

The intersection of language technology and retail has transformed how consumers shop. Voice commerce represents one of the most significant shifts in retail technology, allowing customers to make purchases using only voice commands. This poll tests your knowledge of the historical development of voice commerce systems and their impact on retail linguistics patterns. Do you know when this technology first became commercially viable for mainstream retailers?

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2007, when Amazon first began experimenting with voice recognition for product searches
2014, when Amazon launched Echo with Alexa and voice purchasing capabilities
2011, when Apple released Siri with built-in retail partnership capabilities
2016, when Google Home entered the market with multilingual voice shopping features